Roller Chain Sprocket; 40 Chain; 21 Teeth; 2 Row of Teeth; Hardened Teeth; 3.618" Outside Diameter; 3.355" Pitch Diameter; A-Double Single; Bushed Mount; 1615 Bushing; 1/2" Chain Pitch; ANSI Roller Chain; Keyway; Steel Material

Roller Chain Sprocket; 24B-1 Chain; 21 Teeth; 1 Row of Teeth; Hardened Teeth; 275.666MM Outside Diameter; 255.63MM Pitch Diameter; B-Hub One Side; Bushed Mount; 3020 Bushing; 38.1MM Chain Pitch; ISO Roller Chain; Keyway; Steel Material

Roller Chain Sprocket; 08B-1 Chain; 21 Teeth; 1 Row of Teeth; Hardened Teeth; 91.897MM Outside Diameter; 85.21MM Pitch Diameter; A-No Hub; Rough Bore Mount; No Bushing; 12.7MM Chain Pitch; ISO Roller Chain; No Keyway; Steel Material

Roller Chain Sprocket; 100 Chain; 21 Teeth; 1 Row of Teeth; Hardened Teeth; 9.044" Outside Diameter; 8.388" Pitch Diameter; A-No Hub; Rough Bore Mount; No Bushing; 1-1/4" Chain Pitch; ANSI Roller Chain; No Keyway; Steel Material

Synchronous Pulley; 3" Belt Width; 1/2 Inch Belt Pitch; H Belt Style; 21 Teeth; 3.307" Face Width; Bushed; 3.288" Outside Diameter; 3.342" Pitch Diameter; Yes Keyway; 1/2 To 1-5/8" Bushing Bore Range; 1615 Bushing; No Minimum Plain Bore